Patents by Inventor Seiji OKITA

Seiji OKITA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coil bobbin, stator core of distributed winding radial gap-type rotating electric machine, and distributed winding radial gap-type rotating electric machine
    Patent number: 11444502
    Abstract: A coil bobbin of the present disclosure is a coil bobbin attached to a stator core of a distributed winding radial gap-type rotating electric machine, and includes a teeth holding portion and a slot insulator which are made of an insulator. The teeth holding portion has: a first wall surface that covers a first circumferential side surface of a tooth of the stator core; a second wall surface that covers at least a part of a second circumferential side surface of the tooth; and a third wall surface that covers both side surfaces in an axial direction of the tooth. The slot insulator is formed integrally with the first wall surface of the teeth holding portion, and has a plurality of through-holes extending in the axial direction and arrayed in a radial direction.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: September 13, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yuji Enomoto, Seiji Okita, Keisuke Suzuki, Kohei Eto, Eiji Katayama
  • COIL BOBBIN, STATOR CORE OF DISTRIBUTED WINDING RADIAL GAP-TYPE ROTATING ELECTRIC MACHINE, AND DISTRIBUTED WINDING RADIAL GAP-TYPE ROTATING ELECTRIC MACHINE
    Publication number: 20210249926
    Abstract: A coil bobbin of the present disclosure is a coil bobbin attached to a stator core of a distributed winding radial gap-type rotating electric machine, and includes a teeth holding portion and a slot insulator which are made of an insulator. The teeth holding portion has: a first wall surface that covers a first circumferential side surface of a tooth of the stator core; a second wall surface that covers at least a part of a second circumferential side surface of the tooth; and a third wall surface that covers both side surfaces in an axial direction of the tooth. The slot insulator is formed integrally with the first wall surface of the teeth holding portion, and has a plurality of through-holes extending in the axial direction and arrayed in a radial direction.
    Type: Application
    Filed: November 16, 2020
    Publication date: August 12, 2021
    Inventors: Yuji ENOMOTO, Seiji OKITA, Keisuke SUZUKI, Kohei ETO, Eiji KATAYAMA